I was half expecting Snuffles to actually speak when I tried to talk to him for some reason... or at least seem to consider speaking but think better of it like that guar in Morrowind... Don't know why I expected that, since I know Snuffles isn't part of Wild Wasteland.
But yes, I helped fix that mole rats leg, which the people liked. It was nice to see a mole rat that wasn't suicidal (Read: Didn't attack me on sight.) for a change, considering that in Fallout 3 they always threw themselves at me and never became anything more than annoying, and it just got to the point where I had no reason to carry the mole rat stick because I could one hit kill them even without it.
I recall the mole rats in the mole rat ranch also don't seem to be hostile, but for some reason there was a hostile brahmin there when I found it, that seemed kind of random.
I've not found Snuffles yet - is it part of the Wild Wasteland trait?
Spoiler Look around Sloan. And no, Snuffles appears without the Wild Wasteland trait. Just be careful if you go north of the settlement, if you see signs warning about Deathclaws... well, let's just say they're not lying...